QEIB: A Theoretical Framework for Density-Dependent Life-History Evolution in Variable Environments

定义生物体生活史的参数，例如生命不同阶段的存活率、出生率、发芽率和分散率，都随着自然环境，如天气，以及由不同种类生物的密度所定义的生物环境而变化。生命史进化的一般数学理论将被发展，考虑到变化的环境和生物密度的相互作用的影响。将利用概率论、动力系统理论和计算机模拟建立和研究数学模型。特别强调多年生生物的一年生植物萌发、生长、存活和繁殖关系，以及多年生植物生长的季节变化。生物的生活史是它与环境相关的方式的基础，因此，生活史是预测条件变化的基础，无论是人为干预还是自然原因。研究对象的复杂性意味着，有效的研究需要一个理论框架来生成假设，然后再进行实证检验。尽管之前已经提出了不同物理环境和生物密度影响的单独理论，但对它们之间的相互作用的关注非常有限。这项研究的结果应该广泛适用于野生生物(动植物、害虫、杂草和渔业)，也适用于农作物和家畜。

The parameters defining the life history of an organism, for example,survival rates at different stages in life, birth rates, germinationrates and dispersal rates, vary with the physical environment, such asweather, and also with the biological environment defined by thedensities of organisms of different sorts. A general mathematicaltheory of life-history evolution will be developed that takes intoaccount the interacting effects of a varying environment and organismdensities. Mathematical models will be developed and investigated usingprobability theory, dynamical systems theory, and computer simulation.Particular emphasis will be placed on annual plant germination, growth,survival and reproductive relations in perennial organisms, and seasonalvariation in growth of perennial plants.The life history of an organism is fundamental to the way it relates toits environment, and therefore the life history is fundamental topredicting what will happen to the organism as conditions change eitherthrough human intervention or natural causes. The complexity of thesubject means that effective study requires a theoretical framework togenerate hypotheses, which can then be tested empirically. Althoughseparate theories for the effects of a varying physical environment andorganism densities have been developed previously, there has been verylimited attention to their interaction. The results of the study shouldhave wide applicability to wild organisms (flora and fauna, pests, weedsand fisheries), with some applications also to crops and domesticanimals.